Jump to content

Rhinichthys

From Wikipedia, the free encyclopedia

Rhinichthys
Loach minnow (R. cobitis)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Leuciscidae
Subfamily: Pogonichthyinae
Genus: Rhinichthys
Agassiz, 1849[1]
Type species
Cyprinus atronasus
Species

see text.

Synonyms[1]

Rhinichthys, known as the riffle daces, is a genus of freshwater ray-finned fishes belonging to the family Leuciscidae, the shiners, daces and minnows. The type species is Rhinichthys atratulus, the blacknose dace. Rhinichthys species range throughout North America.

One of species in this genus, the loach minnow, is considered Vulnerable. It also includes the extinct Las Vegas dace, which was only first described in 1984 and had been declared extinct by 1986.[2] The cheat minnow (Pararhinichthys bowersi), a natural hybrid of the longnose dace (R. cataractae) and the river chub (Nocomis micropogon), was formerly placed in this genus, but is now considered by some authorities to be valid under Pararhinichthys, although this is regarded as a synonyms of Rhinichthys by Eschmeyer's Catalog of Fishes.[1]

The riffle daces are a basal lineage in an insufficiently resolved clade of American Leuciscidae. Such a group had been proposed on anatomical evidence, and was verified using mtDNA 12S rRNA sequences.[3]

Species

[edit]

These are the currently valid species included in this genus:[4]

References

[edit]
  1. ^ a b c d Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Pogonichthyinae". Catalog of Fishes. California Academy of Sciences. Retrieved 19 March 2025.
  2. ^ NatureServe (2013). "Rhinichthys deaconi". IUCN Red List of Threatened Species. 2013: e.T19490A19035017. doi:10.2305/IUCN.UK.2013-1.RLTS.T19490A19035017.en. Retrieved 19 March 2025.
  3. ^ Andrew M. Simons; Richard Mayden (1997). "Phylogenetic Relationships of the Creek Chubs and the Spine-Fins: an Enigmatic Group of North American Cyprinid Fishes (Actinopterygii: Cyprinidae)". Cladistics. 13 (3): 187–205. doi:10.1111/j.1096-0031.1997.tb00315.x.
  4. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Rhinichthys". Catalog of Fishes. California Academy of Sciences. Retrieved 19 March 2025.